India's rising shuttler PV Sindhu and Olympics quarterfinalist P. Kashyap will play in the Singles semi-finals of the Swiss Open Badminton tournament at Basel today. While seventh seed Sindhu will take on Sun Yu of China, third seed Kashyap will clash with Houwei Tian, also of China.In the Women's Singles quarterfinals Friday, Sindhu had stunned China's third seed Shixian Wang, with a superb straight game, 21-17, 21-15 victory. However, ace shuttler Saina Nehwal made an exit, after losing to world number one Yihan Wang, 17-21, 12-21.In the Men's Singles, P. Kashyap stormed into the semi-finals, beating Tien Chen Chou of Chinese Taipei, 21-15, 21-23, 21-18.